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No. 622,832. Patnted Apr. ll, I899. F. WESEL.

ROUTING MACHINE.

( Application filed Mar. 28, 1898.)

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No. 622,832. Patented Apr. ll, I899. F. WESEL.

ROUTING MACHINE.

(Application filed Mar. 23, 1898.)

(No Model.) 8 Sheets-Sheet 2.

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No. 622,832. Patented Apr. I899. F. WESEL.

ROUTING MACHINE.

(Application mean. 23. 1898.) {No Model.)

8 Sheets-Sheet 3.

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Patented Apr. II, I899. F. WESEL.

ROUTING MACHINE.

(Application filed Mar. 23, 1898.)

8 Sheets-Sheet 4.

(No Model.)

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Patented Apr'. II, I899. F. WESEL.

ROUTING MACHINE. (Application filed Mar. 2a, 1895.

8 Sheets-Sheet 5.

(No Model.)

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No. 622,832. Patented Apr. I899. r. WESEL.

ROUTING MACHINE.

(Application filed-Mar. 2a, 1895.

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No. 622,832. 7 Patented Apr. II, I899. F. WESEL.

ROUTING MACHINE.

(Application filed Mar. 23, 1898.) (No Model.)

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Patented Apr. II, I899. F. WESEL.

ROUTING MACHINE.

(Application filed In. 23, 1898.)

8 Sheets-Sheet 8.

(No Model.)

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.Nr'rED STATES PATENT ()FFICE.

FERDINAND WESEL, OF NEW YORK, N. Y.

ROUTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 622,832, dated April 11, 1899.

Application filed March 23, 1898- citizen of the United States, residing at New York, in the borough of Brooklyn and State of New York, have invented certain new and useful Improvements in Routing-Machines, of which the following is a specification.

This invention relates to improvements in routing-machines'or machines of that class which are known as elbow-machines and which are used by engravers on wood, metal, and other surfaces for removing by means of a routing-cutter such portions of the zinc plate, electrotype, woodcut, &c., as are not required for printing.

The invention consists of certain details of construction and combinations of parts,which will be f ullydescribed hereinafter, and finally pointed out in the claims.

In the accompanying drawings, Figure 1 represents a plan View of my improved routing-machine. Fig. 2 is a front elevation of the same, partly in vertical section, on line 2 2, Fig. 1, and also partly in section through the transverse plane of the machine, which passes through the vertical power-shaft. Fig. 3 is a side elevation, partly in vertical longitudinal section, on line 33, Fig. 1. Fig.4 is a side elevation of the routing-cutter, its supporting-spindle, and driving mechanism. Figs. 5 and 6 are respectively a vertical central section on line 5 5, Fig. 4, and a horizontal section on line 6 6, Fig. 4. Fig. 7 is a rear elevation of the routing-cutter and its supporting and driving mechanism, partly in section. Fig. 8 is a horizontal section on line 8 S, Fig. 7. Fig. 9 is a vertical central section of the joint and driving-pulley of the elbow-levers supporting the routing-spindle. Fig. 10 is a top View of the movable clamp andits actuating-lever mechanism. Fig. 11 is a side elevation of Fig. 10, partly in section, on the line 11 11, same figure, through the box containing the springs. Fig. 12 is a vertical transverse section through the bed-plate and the clamping mechanism thereon on line 12 12, Fig. 10. Fig. 13 is a detail section on line 13 13, Fig. 10. Figs. 14,15, and 16 are respectively a front elevation, a side elevation, and a plan view of my improved treadle mechanism for starting or stopping the routingmachine. Figs. 17 and 18 are respectively a Serial No. 674,898. (No model.)

detail side view of the toothed locking-dog and a vertical section on line 18 18, Fig. 17; and Fig. 19 is a transverse section through the base of the machine, showing the levers or parts controlled by the treadles.

Similar letters of reference indicate corresponding parts.

Referring to the drawings, A represents a hollow upright standard which is cast integrally with a large base A and top A the latter carrying a horizontal table B. On the table B is arranged a narrower table B, on which the blocks to be routed are placed and to which they are firmly locked by a clamping mechanism to behereinafter described. At one side of the upright standard A is arranged a vertical shaft 0, which is supported in a step-bearing 0, arranged on the base-plate A, and in a neck-bearing C on the table B, as shown in Figs. 2 and 3. The lower end of the shaft 0 is hardened and adapted to run on a hardened bearing-plate in the step-bearing. A friction-clutch C is arranged on the shaft 0 and actuated by a treadle mechanism which will be described hereinafterand which serves for producing the starting and stopping of the routing-machine. The neck-bearing C for the driving-shaft O is attached by suitable clamping devices d to the table B, as shown in Fig. 2. On the neck-bearing of the driving-shaft C is mounted the sleeveshaped end of a hollow tapering lever-arm D, which turns freely by its disk-shaped base (Z on a disk-shaped flange (l of the neck-bearing C said lever-arm being provided at its outer end with a socket (1 into which is screwed a horizontal extension-arm D. The disk (1' has a recess in one edge, (not shown, however, as it is clear enough With'out,) which recess receives the inwardly-projecting end of the clamp (1 so that the partial rotation of the disk at on the flange (1 will not be prevented. To the extension-arm D is applied a sleeve E, which is provided with a horizontal bracket extension E, through which passes an upright spindle E which is secured by a screw-nut e at its lower threaded end to the bracket extension E, so as to be firmly supported thereon. bracket extension E is supported the diskshaped end F of the second lever-arm F of the jointed lever-arms D F, said lever-arm ex- On the sleeve E and its 52 I eassa dle E above the collar e, is supported the" sleeve-shaped hub e of a double pulley P P, of which the smaller pulleyP extends in up- -ward direction and the larger pulley P in downward direction from their common web e The hub c is retained in position on the collar 6 of the spindle E by a screw-nut 6X, applied to the upper threaded end of the spindle E? and washers 9 which are respectively interposed between the lower end of the hub e and the collar 6 and upperend of the hub e and the screw-nut e as shown in Fig. 9. The small pulley P receives rotary motion by a belt from a larger pulley P on the upper end of the driving-shaft C, while the pulley P transmits rotary motion by a second belt to the small pulley P onthe cutterspindle, as shown in Fig. 3. The pulleys P and P are so arranged that the first belt can be freely removed therefrom and replaced thereon after tightening up, while the second or driving belt of the cutter-spindle can be easily removed from the pulley P for being tightened up when necessary.

The motion of the rotary cutter is transmitted from the upright shaft 0 by the pulleys P P P P and the belts running over the same to the cutter spindle. The shaft 0 is started by shifting the splined member of the clutch G into mesh with the loose member and stopped by raising the splined member out of mesh with the'loose member. The operation of the clutch C is accomplished by a double-treadle mechanism. (Shown in Figs.

' 2 and 3 and 14: to 18.) It consists of two treadles T T, of which the lever t of the treadle T is mounted on one end of a rockshaft R, journaled in upright standard A. Also mounted on the rock-shaft R is another and oppositely-projecting lever t, which is pivoted to the lower end of a link P, which actuates a third lever F, that is fulcrumed to an upright post i said lever 25 being forked at its end and adapted to engage by suitable pins 15 the grooved neck of the splined clutch member, as shown in Figs. 2 and 3. The treadle T is provided with a laterally-projecting lug or pin t which engages the teeth of an oscillating rack T that is pivoted at its upper end to an upright support T attached to the base A of the upright standard A. The rear part of the pivoted rack T is provided with a weighted arm t, which is provided with a slotted recess 6 that is engaged by a pin i on the rear end of the lever?! of the second or releasing treadle T. The lever t is fulcrumed to the upright support T The treadle T is located sidewise of and somewhat in front of the treadle T. The

treadle T serves when depressed for oscillating the rack T in backward direction, so as to release it from the laterally-extending lug or pin of the treadle T and produce the return of the treadle T, and thereby the lifting of the splined member of the clutch C clear of the loose member, so that the routing-machine is instantly stopped. The return of the treadle T into raised position is produced by a strong V-shaped spring 15 which acts on the under side of thelever t of the treadle T, said spring overcoming the weight of the splined member of the clutch and holding it in raised position until the machine is to be started again, which is accomplished by depressing the treadle T and locking it into its lowered position by the rack T from which it is released again by depressing the treadle T, so that the machine is instantly stopped.

The connection of the extension-arm D with the lever-arm F is so accomplished that a free motion of the lever-arms D F at their joint or elbow is produced, while the connection of the parts can be readily screwed up and tightened from the outside by tight ening up the screw-nuts at the ends of the upright spindle E A cup 6 is arranged at the upper side of the disk-shaped end F of the arm F and serves for producing the lubrication of the joints, so that they move with little friction one upon the other. V The lubricating-oil is supplied to the cup 6 from an oiler e and a channel 6 in the upper end of the spindle E Below the front end F of the lever-arm F extends a guide-rail G, which is supported at the front end of the table B, said rail being attached by fastening-bolts g to the upper enlarged ends of two vertical rods g, that are guided in stationary sockets g at the front part of the table B. The lower ends of the vertical rods 9 are connected by means of sleeves g clamped thereto, with fulcrumed levers 9 below the table, said levers being connected by a transverse rod 9 and a connecting-rod g with a treadle G, pivoted on the end of rock-shaft R, so that on depressing the treadle G the intermediate levers g and guide-rods g are operated, and thereby the guide-rail G raised. The guide-rail G lifts at the same time the extension F of the lever-arm F and the cutter supported on the same, so that the operation of the routing-cut ter is instantly-interrupted.

A heel-rest S is arranged at the end of an arm or bracket S, fixed to the standard A, so that the heel of the operator may be placed upon the same in moving the treadle G.

The cutter spindle and its support are shown in detail in Figs. 4 to 8. The supporting portion is attached to the lever-arm F by a shouldered plate f clamping-screw f, and nut fflthe clamping-screw being guided in a slotf of the arm F. The shouldered plate f carries an upright plate H, having dovetailed ways It, on which is guided the correspondingly-grooved plate H, which is firmly retained thereon by set-screws h and an in termediate strip 72?, interposed at one side of the dovetailed ways and grooves in the plates H H, as shown in Figs. 6 and 8. The upright plate H is provided at its upper and lower parts with laterally-extending sleeves H which serve as supports for the conicallytapering bearings H of the cutter-spindle, said sleeves being'thickened adjacent to the late H so as to rovide for arran in bore p 7 a 2::

holes or channels 71 by which the lubricant is conducted to the spindle-bearings. In the bearings H of the sleeves H is supported a tubular steel shaft H in which the cutterspindle H is located. The cutter-spindle H is provided at its lower end with a slitted and outwardly-flaring socket h for the rout-- ing-cutter h and at the upper end with a threaded portion for applying a milled screwnut h by which the spindle H is drawn up into the tubular shaft H so that the flaring socket portions are moved against the flaring lower edge of the tubular shaft H and thereby the routing-tool firmly clamped to the cutter-spindle H The upper end ofthe tubular shaft H is likewise made flaring at its inner edge for receiving the tapering end of the screw-nut. Thetubularshaftll issupported in the comically-tapering bearings H which are provided with screw-threaded upper ends, to which steel nuts h are applied, which can be readily screwed up on the threaded ends of the bearings, so as to draw them into the correspondingly tapering sleeves H The screw-nuts h are provided with radial holes in their circumference for permitting the inserting of a suitable lever and turning the nut for tightening up the bearings even while the cutter is operated. A drive-pulley P for the cutter-spindle is arranged on the shaft H between the upper and lower sleeves H and attached thereto by suitable set-screws. To reduce the friction between the tubular shaft H and the supporting-sleeves H antifriction-balls h" are interposed between cones h at the upper end of the upper sleeve and at the lower end of the lower sleeve and suitable cone-grooves at the upper and lower ends of the tubular shaft H said cones being attached in any approved manner to the sleeves H The supporting-plate H, together with the routing mechanism, can be raised or lowered on the dovetailed guideways of the upi right plate H by means of a screw-spindle t', which passes in downward direction into a suitable bore in plate H and engages a nut i secured in the plate H by a set screw 2". The screw-spindle 2' has a flange I near its upper end, which is held down so as to prevent the longitudinal movement of said spindle by means of a plate 1', secured to the top of a plate H by-suitable screws, so that by turning the screw-spindle t' in one or the other direction the supporting-plate H is raised or lowered, and thereby the entire routing mechanism set to the required height above the the upper end of a spring-arm K that is secured at its lower end to the lower sleeve H When the brake-shoe K is pressed with the finger against the cylindrical portion K of the pulley P the rotation of the cutter-shaft H can'be quickly retarded and stopped. To the lower part of the cutter-shaft H is applied, by means of a bayonet-joint, a fan L, the inclined wings or blades of which are made integral with the cylindrical hub of the fan, so that the chips produced by the routing-cutter'are removed from the work by the air-current produced by the fan. The routing mechanism and its support are connected with the lever-arm F and can be adjusted forward or backward on the same by means of the clamping-screw f, which passes through the slot f 0 of the arm, whenever this should be required for stretching tightly the transmitting-belt passing over the pulley P The zinc plate, wood-engraving, or other object to be operated upon by the routing-cutter is clamped to the table 13, which is provided with a longitudinal guide-groove m, on which is arranged a stationary gage 7t, that is secured in the groove by means of a clamping-nut n in the well-known manner. The opposite end of the zinc plate, wood-engraving, or other object is pressed firmly against the gage n by a second gage 01 which is set by a bottom pin a into one of the openings 0 of a slide-piece N of inverted-T shape, the upper part of which is guided in a slot 71 in the table 13, parallel with slot m, while the lower part is guided in ways 12 at the under side of the table, as shown in Figs. 2 and 12. At the rear end of the slide-piece N are arranged sockets n which are made in one piece with the T-shaped front portion of said slide-piece. On the under side of the slidepiece N is arranged a relatively and longitudinally movable L-shaped piece N, the recessed front edge of which is guided on a headed screw 8, attached to the slide-piece N, while the rearv end is provided with guidepins M, which enter into the sockets n at the rear end of said slide-piece. Between the guide-pins n and set-screws n, which are screwed into and supported by the closed ends of the sockets of, are interposed helical springs a the tension of which is regulated by the set-screws n and washers 71 between the rear ends of the springs a and the setscrews it The piece N is connected by a laterallyextending lug n andan intermediate pivotlink at with the inner shorter arm of an elbow-lever N that is fulcrumed to the under side of the table B and extended beyond the front edge of the same, the forward end be I ing made in the shape of a handle.

A pivoted and spring-actuated pawl N pivoted to the under side of the lever N engages a stationary toothed segment N at the under side of the table, so as to hold the lever N and thereby the slide-pieces N N and the lockinggage n firmly in position. When it is desired to set the slide-piece N and the lockinggage "n the handle of the lever N and the pivoted pawl-actuating handle N are taken hold of and pressed toward each other, so that the pawl N is released from the toothed segment N and the lever N permitted to swing on its fulcrum so as to move the lockinggage a forward to lock against the zinc plate or backward to release the same from said.

gage. The locking-gage n is dropped into the hole of theslide-piece next to the zinc plate .or other object and then moved tightly against the same by the lever N nntil the firm clamping of the zinc plate is obtained. The rigid clamping of the locking-gage n to the zinc plate is obtained for the reason that the springs a give sufficiently, so as to facilitate the engaging of the pawl N with the nearest tooth of the segment N without breaking the pawl or teeth. It will be readily understood that on first moving the lever N forward the L-shaped piece N will cause the springs a to push the slide-piece N along until the locking-gage n strikes against the object to be clamped and that then by reason of the resistance offered by said object the slide-piece N cannot be moved farther; but the lever N can be moved still farther, because the springs 12- yield to and are compressed by the L-shaped piece N, so that the pawl can be set as far forward against one of the teeth of the toothed segment N as the springs will permit, and the extent to which the springs are compressed will determine the pressure'exerted by the lockingage upon the object clamped. By the clamping arrangement described zinc plates of larger or smaller size can be firmly clamped to the table and rigidly held in position for the action of the routing-cutter. When it is desired to remove the zinc plate, the locking-gage is released by liberating the pawl from the segment, upon which the lever N can be quickly withdrawn into its normal position of rest by its spring N so that the routed .plate can be removed.

The advantages of my improved routingmachine consist, mainly, in its comparative simplicity and consequent economy of construction. Its driving-shaft is arranged as a part of the machine, so that the machine can be set up anywhere on the floor and is not required to be placed along a side wall or upright beam for receiving power. The jointed elbow-lever and the connection of the leverarms at the joint are simple in construction and easily accessible from the outside without requiring the taking apart of the parts when they have to be readjusted. Considerable loss of time is thereby avoided by my construction of the jointed elbow-lever. The routing-head of the machine, with its cutterspindle, is likewise greatly simplified and improved. The ball-bearings of the cutter-shaft permit the routing-cutter to be driven at high speed Without undue vibration or heating. The ball-bearings also hold the cutter-shaft firmly in position and prevent the necessity of a too-frequent vertical adjustment of the cutter-spindle. Lastly, the improved clamp construction permits the quick and effective locking of the zinc plate or other object for the action of the routing-cutter and the instant release of the same after the routing work is accomplished.

Having thus described my invention, what I claim is 1. In a routing-machine, the combination of an upright driving-shaft, a friction-clutch at the lower end of said driving-shaft, a I

jointed elbow-lever swiveled to the upper end of said driving-shaft, a treadle mechanism for actuating the friction-clutch, intermediate levers between the friction-clutch and treadle mechanism, said treadle mechanism consisting of a spring-actuated main treadle, a pivoted and weighted rack for locking said main treadle, and a releasing-treadle for withdrawing the rack from the main treadle and liberating the latter treadle, substantially as set forth.

2. In a routing-machine, a routing-head, composed of an upright plate, stationary sleeves on the same, conical bearings within saidsleeves,atubular cutter-shaft insaidbearings, ball-bearings for the upper and lower ends of said cutter-shaft, screw-nuts applied to the upper ends of said conical bearings, a cutter-spindle in said cutter-shaft, a clutch at the lower end of said cutter-spindle, and a tapering screw-nutapplied to the upper end of the spindle, the tapering end of said screwnut being received by a correspondingly-flaring socket in the upper end of said cuttershaft for adj usting it in the cutter-shaft, substantially as set forth.

'3. In a routing-machine, a routing-head, the cutter-shaft of which is provided at its lower end witha fan device composed of a cylindrical sleeve, Wings or plates on said sleeves, and a bayonet-fastening for applying said sleeve to the lower end of said cuttershaft, substantially as set forth.

4. In a routing-machine, the combination, with a jointed lever-arm, of an upright supporting-plate attached to the outer arm of the same, an adjusting plate guided thereon, routing mechanism supported by said adj usting-plate, a screw-nut located in a recess of the supporting-plate, and provided with a screw-threaded stem passing through a slot in said upright plate, a flanged screw-spindle engaging said screw-nut, a confining-plate in the upper end of the upright plate, above the flange on the screw-spindle, and a clamping-nut screwed onto the stem of said screwnut for clamping said adjusting-plate and screw-spindle after adjustment of the routing mechanism, substantially as set forth.

5. In a routing=machine, the combination with the'bed-plate,provided with a fixed gage, of a slide-piece provided with a locking-gage, a relatively and longitudinally movable piece guided along said slide-piece, springs carried bysaid slide-piece and adapted to be compressed by said longitudinally-movable piece, a fulcrumed lever connected with the latter, and mechanism for locking said lever in position against the tendency of said springs, substantially as set forth.

6. In a routing-machine, the combination 7 with the bed-plate provided with a fixed gage,

of a slide-piece provided with a locking-gage,

FERDINAND WESEL.

Witnesses PAUL GOEPEL, E. SMITH. 

